It may be of use to know how the runway lighting works. No great shakes during a nice daytime approach, but a potential lifesaver if your HUD or Night Vision System have been knocked out. For clarity I have used night screenshots for illustration.

From Bottom to Top:

• Sequence Flashes - These appear as a ball of light travelling towards the runway. If it appears to be moving straight up you are properly aligned in the horizontal.
• Runway End Identifier Lights - Green Lights show the end of the runway to be used for your landing.
• Caution Zone - this shows yellow at each end of the runway and is your safety margin in case your approach was too slow or you ran into downdrafts.
• VASI - Visual Approach Slope Indicator - These lights indicatate your correct glideslope and also provide obstacle clearance up to four miles out and 10 degrees each side of the approach. See below for more information on how this works.
• Runway Edge Lights - these are white. Try to land where the Caution Zone yellow lights join the Runway Edge white lights.
• Far VASI - Ignore these lights and definitely don't try to land near them!

The VASI is a set of lights on either side of the runway that let you know you are on the correct glide slope for that airport. In the illustration above the Red over White shows us that we have the correct vertical alignment, though we are clearly out horizontally.

• White over White - Too much height (TOO HIGH)
• Red over White - You're all right (CORRECT)
• Red over Red - You're Dead (TOO LOW)